Aggregator<T, TResult>.Aggregate By Method
Definition
Namespace: Numerics.NET.DataAnalysis
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
Overload List
Aggregate | Groups the elements of a vector according to the specified grouping. |
Aggregate | Aggregates the elements of a vector according to the specified level indexes. |
Aggregate | Groups the elements of a vector according to the specified level indexes. |
AggregateBy(Vector<T>, IGrouping, Vector<TResult>)
Groups the elements of a vector according to the specified grouping.
public virtual Vector<TResult> AggregateBy(
Vector<T> values,
IGrouping grouping,
Vector<TResult>? result
)
Parameters
- values Vector<T>
- The vector to aggregate.
- grouping IGrouping
- A grouping.
- result Vector<TResult>
- Optional. The vector that is to hold the result. May be null.
Return Value
Vector<TResult>A vector containing the aggregated values.
AggregateBy(Vector<T>, ReadOnlySpan<Int32>, Nullable<Boolean>, Vector<TResult>)
Aggregates the elements of a vector according to the specified level indexes.
public virtual Vector<TResult> AggregateBy(
Vector<T> values,
ReadOnlySpan<int> levels,
bool? skipMissingValues,
Vector<TResult> result
)
Parameters
- values Vector<T>
- The vector to aggregate.
- levels ReadOnlySpan<Int32>
- An array of level indexes.
- skipMissingValues Nullable<Boolean>
- Specifies whether missing values should be excluded from the aggregation. If null, then the value is inferred from values.
- result Vector<TResult>
- The vector that is to hold the result. May be null.
Return Value
Vector<TResult>AggregateBy<TPredicate>(Vector<T>, ReadOnlySpan<Int32>, TPredicate, Nullable<Boolean>, Vector<TResult>)
Groups the elements of a vector according to the specified level indexes.
public virtual Vector<TResult> AggregateBy<TPredicate>(
Vector<T> values,
ReadOnlySpan<int> levels,
TPredicate predicate,
bool? skipMissingValues,
Vector<TResult> result
)
where TPredicate : struct, new(), IFastFunc<T, bool>
Parameters
- values Vector<T>
- The vector to aggregate.
- levels ReadOnlySpan<Int32>
- An array of level indexes.
- predicate TPredicate
- A predicate that filters the values that are to be included in the aggregation.
- skipMissingValues Nullable<Boolean>
- Specifies whether missing values should be excluded from the aggregation. If null, then the value is inferred from values.
- result Vector<TResult>
- The vector that is to hold the result. May be null.
Type Parameters
- TPredicate
- The type of predicate.